18964360

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4603}}^1$

素因数の和:4717

約数の個数: 32

約数和(自身を含む): 43093440

約数和(自身を除く): 24129080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4603, 9206, 18412, 23015, 36824, 46030, 92060, 184120, 474109, 948218, 1896436, 2370545, 3792872, 4741090, 9482180, 18964360]

約数ペア:

[(1, 18964360), (2, 9482180), (4, 4741090), (5, 3792872), (8, 2370545), (10, 1896436), (20, 948218), (40, 474109), (103, 184120), (206, 92060), (412, 46030), (515, 36824), (824, 23015), (1030, 18412), (2060, 9206), (4120, 4603)]